Joint fastener and tightener.



J. W. S LES. JOINT FASTENE ND TIGHTENER.

APILIOATION FILED MAY 14, 1908. 973,14A, Patented Oct. 18, 1910.

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JOSEPH W. STAPLES, OF DIXON, ILLINOIS.

JOINT FASTENE R AND TIGHTENER.

citizen of the United States, residing at device in side and end Dixon,in the county of Lee and State of Illinois, have invented certain newand "useful Improvements in Joint Fasteners and Tighteners; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specification.

My invention has reference to joint fasteners and tighteners, and isspecially designed to be used in re-uniting parts of furnitur which havebecome separated, such as the rounds or legs of chairs, or in tighteningsuch parts that have become loose. The scope of the device is notlimited, however, and the same can be used to advantage in most anyplace where two parts come together. It .can also be employed to asgreat advantage in the construction of newfurn'iture as in the repair ofold articles thereof.

In the drawings: Figure 1 is a longitudinal section, showing a joint,with my device in use therein. Figs. 2 and 3 illustrate my views,respectively.

Figs. 4 and 5 illustrate a modified form thereof, also in side and endviews. Fig. 6

is an enlarged detail, in section, showing the manner of applying mydevice. Fig. 7 is a view, partly in section, showing a modified use ofmy inventlon.

Similar numbers refer-to similar parts .throughout the several figures.

1 represents a piece of furniture, as a portion of a leg of a chair, and2 part of a round attached thereto. 3 is a screw or bolt, such as isordinarily used in fastening such parts together, extending through thepart 1 and longitudinally into the part 2. By reason of the screwextending into the part 2 lengthwise of the grain of the wood, the

same eas ly becomes loosened by use, so as to permit the joint to becomeseparated.

" The chief urpose of my device is to overcome-this ifliculty. The part2 is provided with a longitudinal recess 4, into which the screw 3 canbe readily introduced. Transversely of the recess 4.- the part 2 isprovided -"with a circular opening 5, in which is inserted a pin 6,preferably of metal, having a T central perforation 7, threaded tocorre- Speeification of Letters Patent.

Application filed May 14, 1908.

""of the Patented Oct. 18, 1910. Serial No. 432,856.

spond with the threads on the bolt The pin 6 is further provided on oneof its sides with a flat face 8, extending from one end of such pin tothe perforation 7 To secure the screw 3 in place the pin 6 is partiallyinserted in face 8- outwardly, as shown in Fig. 6. The screw 3 is theninserted in the recess 4 until the inner end thereof comes in contactwith the face 8, whereupon the pin 6 is forced i11 wardly until theperforation 7 is in line with such screw, whereupon the screw is turnedtherein until firmly held by the pin 6. In this operation the face 8serves as a guide to direct the end of the screw to the perforation, itbeing impossible for the end of the screw to pass beyond the perforation7 by reason of coming in contact with that wall perforation which isopposite to the face 8.

The pin 6 may be provided at that end which is opposite to the face 8with a slot 9, in line with the perforation 7, by means of which the pincan be turned to bring the face 8 into engagement with the end of thescrew '3', in case'it is not in such position.

In Figs. 4 and 5 is shown a form of pin (3 in which the face 8 isreplaced by an angular groove 10, which is specially adapted to be usedin connection with a screw having a pointed inner end. In Fig. 7 areshown portions of a frame, as 11 and 12, fastened together with twoscrews 13, the inner ends of which are held in a perforated pin 14,provided with perforations-15, (dotted lines) at predeterminedintervals, such perforationsbeing threaded to receive the screws. Inthis use the pin may be formed of anysuitable length, and after thescrews are secured in the end perforations thereof, the projectingportion of the pin may be severed at the edge of the frame, and used forother joints. 7 By a slight'adaptation my device can be used in anyplace where two pieces of wood are joined together, and by employingbolts and pins of suflicient strength, can be used in the constructionof pianos and other heavy articles of furniture. It can also he used infastening other materials than wood, such as stone, glass, marble, etc.

\Vhat I claim as my invention, and desire to secure by Letters Patentof. the United States, is:

1. A joint fastener and tightener comprising a male threaded member, afemale the opening 5, with the I 2 crane threaded member laterallyslidable to cause I comprising a screw and a pin, said pin pr'o saidthreaded members to aline, and means vided with a diametrical threadedperfora: on said female threaded member and coacttion, a longitudinalguiding groove extending with said niale member to govern and ing fromsaid threaded perforation to endof limit the movement of said threadedmemsaid pin, and a slot in opposite end of said here into alinement. pinparallel to said threaded perforation.

2. A device of the character described In testimony whereof, I affix mysignature, comprising a screw and a pin having a in presence or" twoWitnesses. transverse threaded perforation, and having JOSEPH W.STAPLES.

a groove extending from said threaded per foration to end of said pin.

3. A device of the character described lVit-nesses lY. J. BURLEIGH, R.W. E. MITCHELL.

